[Bug: 21.5-b27] Mouse wheel scrolls multiple windows in a frame

[Stephen J. Turnbull]

Michael Hohmuth writes:

 > I have set mwheel-follow-mouse to t and run mwheel-install, with the
 > intent that the mouse wheel scrolls only the XEmacs window that
 > contains the mouse.
 > 
 > My problem occurs when an XEmacs frame (an X window) displays more
 > than one XEmacs window (each with one buffer).  When the point
 > (cursor) is positioned in one buffer, but the mouse points to another
 > buffer, the mouse wheel always scrolls *both* XEmacs windows.  (A
 > third windows that contains neither mouse nor point is not affected.)

Works as expected for me, on an XEmacs built from source current as of
Jan 5, on Mac OS X (displaying to X11).

We'll keep looking at this (eg try on other platforms), but in the
meantime you should report the bug to the vendor, as they may have
patches we know nothing about.